© by SEMIKRON B 4 – 7
Antiparallel Thyristors
with Isolated Water Flow
SKIW 700
SKIW 900
Features
•Compact units containing tw o
high current thyristors
connected in antiparallel
•Internal insulation between
thyristors and cooling media via
aluminium oxyde (AlO
2
)
•All plastic material used carries
Underwriters Laboratories
flammability classification 94V-0
Typical Applications
•Large resistance welding
equipment
•Large electroplating equipm en t
V
DRM
V
RSM
V
RRM
I
RMS1)
(Vol
w
= 4 l/min., T
w
= 40 °C, ED = 50 %, n = 10)
V 850 A 1200 A
1200 SKIW 700/12 SKIW 900/12
1400 SKIW 700/14 SKIW 900/14
1600 SKIW 700/16 SKIW 900/16
Symbol Conditions SKIW 700 SKIW 900
I
RMS1)
Vol
w
= 4 l/min, T
w
= 40 °C, ED =100 % 700 A 900 A
I
TSM
T
vj
= 40 °C; 10 ms 7 000 A 10 000 A
T
vj
= 125 °C; 10 ms 6 000 A 8 500 A
i
2
tT
vj
= 40 °C; 8,3 ... 10 ms 245 000 A
2
s 500 000 A
2
s
T
vj
= 125 °C; 8,3 ... 10 ms 180 000 A
2
s 360 000 A
2
s
(di/dt)
cr
f = 50 . . . 60 Hz 125 A/ µs
(dv/dt)
cr
T
vj
= 125 °C 200 V/µs
t
q
T
vj
= 125 °C; typ. 150 µs
I
H
T
vj
= 25 °C 200 mA
I
L
T
vj
= 25 °C; R
G
= 33 Ω600 mA
V
T
T
vj
= 25 °C; (I
T
= . . .); max. 1,65 V 1,45 V
(500 A) (800 A)
V
T(TO)
T
vj
= 125 °C 1,0 V 1,0 V
r
T
T
vj
= 125 °C 0,7 mΩ0,5 mΩ
V
GT
T
vj
= 25 °C3 V
I
GT
T
vj
= 25 °C 200 mA
V
GD
T
vj
= 125 °C 0,25 V
I
GD
T
vj
= 125 °C10 mA
R
thjw
Vol
w
= 4 l/min 0,175 °C/W 0,14 °C/W
T
vj
max. 125 °C
T
stg
min. . . . max. 5 . . . 85 °C
V
ISOL
a.c. 50 Hz; r.m.s.; 1 min 2500 V∼
M
2
SI units / US units 20 Nm / 180 lb. in.
p
w
max. 10 bar
w 1,3 kg
Case C 1
1)
For Vol
w
= 2 l/min and T
w
= 30 °C the same I
RMS
values apply
© by SEMIKRONB 4 – 8
© by SEMIKRON B 4 – 9
© by SEMIKRONB 4 – 10
